JPS523215B2 - - Google Patents
Info
- Publication number
- JPS523215B2 JPS523215B2 JP49110468A JP11046874A JPS523215B2 JP S523215 B2 JPS523215 B2 JP S523215B2 JP 49110468 A JP49110468 A JP 49110468A JP 11046874 A JP11046874 A JP 11046874A JP S523215 B2 JPS523215 B2 JP S523215B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49110468A JPS523215B2 (https=) | 1974-09-27 | 1974-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49110468A JPS523215B2 (https=) | 1974-09-27 | 1974-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5138744A JPS5138744A (https=) | 1976-03-31 |
| JPS523215B2 true JPS523215B2 (https=) | 1977-01-26 |
Family
ID=14536461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49110468A Expired JPS523215B2 (https=) | 1974-09-27 | 1974-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS523215B2 (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL176804C (nl) * | 1977-04-06 | 1985-06-03 | Wavin Bv | Kunststofbuis met langskanalen in zijn wand, alsmede werkwijze voor het vervaardigen van een dergelijke kunststofbuis. |
-
1974
- 1974-09-27 JP JP49110468A patent/JPS523215B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5138744A (https=) | 1976-03-31 |